E180 : can't read from modem

[debackel]

Hi,
I connected a E180 to an RPI, and trying to get the model using the basic example shown in the documentation. I have a virtualenv with the latest version of serial and python 2.7.
Unfortunately, the method show_model hangs (as described in another issue with a E1750).
It seems that the select.select statement in serialposix.py doesn't can't read from the file.
However, I have no issue at all when using the miniterm.py shipped with the serial library.

Any clue?

Thanks.